VEVOR Lab Incubator 20L Bacteria Incubator RT+5-65℃ Scientific Digital Incubator PID Temperature Control Microbiological Laboratory Incubator for Bacterial Culture Seed Germination Medical Science

First of all, the machine does not need to set the time. If the machine does not set the time, the machine will always run at a constant temperature. If a time is set, the machine will start timing when it reaches the set temperature. After the timing is over, the machine will stop heating (so it will not maintain a constant temperature).

The heating hole is a reserved hole for the fan switch. It serves as a decoration but has no effect.

No, this one cannot control humidity.

No, this device does not have this function.

Yes, the incubator temperature setting can be switched from Celsius to Fahrenheit. Please follow these steps: Press and hold the SET button until LK appears, enter 168, click the SET button again to find CF. When CF is 0, it displays Celsius; when CF is 1, it displays Fahrenheit.